MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 53 



stoutest, the tarsi not or scarcely loiif-er than the tibije, slender, claws 

 simple. 



This genus, the type of the subfamily, is of small extent, few species 

 in it having been discovered either in Euro])e or America. 



It resembles my genus Lcelius in venation, but the 12-jointed auten- 

 nje and the G-jointed palpi readily distinguish it. 



Our species may be tabulated as follows: 



TABLE OF SPECIES. 



FEMALES. 



Abdomen with a strong constriction between the third and fourth segments. 



Legs, except cox;e, reddish-yellow B. CONSTRICTIIS, sp. nov. 



Abdomen normal. 



Legs honey-yellow B. pedatus. Say. 



Legs black, tibije and tarsi brownish, B. centratus, Say. 



Bethylus constrictus, sp. uov. 



9 . Length 3""". Black, shining, impunctured, with some sparse 

 black hairs. Head a little longer than wide. Antennae 12-joiuted, less 

 than twice the length of the head, brown, the pedicel very small, the 

 flagellar joints very little longer than wide. The mesonotum shows 

 traces of furrows iiosteriorly. Metathorax finely, closely punctate, 

 subopaque, with raised longitudinal lines towards the base. Legs red- 

 dish-yellow, the coxpe black. Wings dilute fuscous, the veins brown. 

 Abdomen black, highly polished, as long as the thorax, th-e i^etiole 

 very short, the second and third segments long, the latter the longer, 

 with a strong constriction between it and the fourth, the apex produced 

 into a stj^lus-like point, with long, sparse black hairs. 



Habitat. — Jacksonville, Fla. 



Type in Coll. Ashmead. 



Described from a single specimen, which is remarkable for, and easily 

 distinguished by, the constriction between the third and fourth abdomi- 

 nal segments. 



Bethylus pedatus Say. 

 (PI. Ill, Fig. 8, 9.) 



Best. Jour., I, p. 279; Lee. Ed. Say's Works, ii, p. 727; Ashm. Ent. Am., in, p. 97; 



Cress. Syn. Hym., p. 247. 



9 . Length 2.5™'°. Polished black, with sparse hairs. Head hardly 

 longer than wide. Antenna^, 12-jointed, IJ times as long as the head, 

 honey-yellow or pale brownish-yellow, fuscous at tips; the scape is a 

 little more than thrice as long as thick, the joints of the flagellum 

 scarcely longer than thick. Mesonotum without furrows. Scutellum 

 'with a transverse impressed line at base. Mesonotum finely punctulate, 

 with longitudinal raised lines or carinje. Wings hyaline, very faintly 

 tinged, the venation yellowish. Legs dark honey-yellow, the coxie 



